I pay close attention to precipitation forecasts due to the nature of my job. In the midwest, National Weather Service forecasts up to seven days out are reliable and useful. If the NWS says there will be a rainstorm in a week, there usually is one and vice versa. The quantitative aspect of the forecasts is less accurate. It is common to see a small storm become a large one or for a scary storm to fizzle.

This is the page that I check every morning: https://www.wpc.ncep.noaa.gov/qpf/qpf2.shtml